Rails 茧 f.fields_for 不工作

Question

我正在处理一个需要嵌套表单以将多个阀门添加到单个订单的项目（在这种情况下订单称为 rfq）。

我收到这个错误：

ActionView::Template::Error (uninitialized constant Rfq::Valf):
    48:   </div>
    49:
    50:   <div id="valves">
    51:     <%= f.fields_for :valves do |valve| %>
    52:       <%= render 'valve_fields', f: valve %>
    53:     <% end %>
    54:       <%= link_to_add_association 'add valve', f, :valves %>

这是部分表格的相关部分，

<%= form_for @rfq do |f| %>
...
  <div class="field">
    <%= f.label :application %><br>
    <%= f.text_field :application %>
  </div>

  <div id="valves">
    <%= f.fields_for :valves do |valve| %>
      <%= render 'valve_fields', f: valve %>
    <% end %>
      <%= link_to_add_association 'add valve', f, :valves %>
  </div>

  <div class="actions">
    <%= f.submit %>
  </div>
<% end %>

部分阀域：

<div class="nested-fields">
    <div class="field">
        <%= f.label :line %>
        <%= f.text_field :productline %>
    </div>
    <%= link_to_remove_association "remove valve", f %>
</div>

询价模型：

class Rfq < ActiveRecord::Base
    has_many :valves
    accepts_nested_attributes_for :valves, :allow_destroy => true
    belongs_to :customer
    has_paper_trail
end

阀门型号：

class Valve < ActiveRecord::Base
    belongs_to :rfq
    has_paper_trail
end

提前致谢

Answer 1

尝试指定您的 "Valve" class 名称，如下图所示。

class Rfq < ActiveRecord::Base
  has_many :valves, :class_name => "Valve"
  accepts_nested_attributes_for :valves, :allow_destroy => true
  belongs_to :customer
  has_paper_trail
end

Rails 茧 f.fields_for 不工作

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